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Industrial hygiene is a branch of public health research that aims to prevent illness and promote Industrial hygiene is an aspect of public health that prioritizes health protection measures for workers through the identification, evaluation, and control of various elements of the work environment that can cause health problems. The goal of implementing industrial hygiene is to prevent work-related illnesses and create a safe, healthy work environment that supports workers’ well-being. Industrial Safety and Health (IS&H) encompasses these various components, including risk identification, risk assessment, risk mitigation, and worker health monitoring, waste management, and emergency response planning. Workplace risks can include physical, chemical, biological, psychological, and ergonomic hazards. Hazard analysis is a crucial step in industrial hygiene as it helps identify and document potential health risks in the workplace. The hazard analysis process includes hazard identification, risk assessment, hazard prioritization, and risk control. The implementation of Occupational Safety and Health aims to ensure the protection of employees’ safety and health from potential hazards arising from work, while ensuring a safe and sustainable work environment. The implementation of OSH and environmental health also provides broad strategic benefits such as worker protection, cost efficiency, increased productivity, regulatory compliance, and enhanced corporate reputation.  

This community service activity focused on waste management and composting in elementary schools. Daily activities in schools generate organic and inorganic waste, which, if not managed properly, can cause environmental pollution and increase the risk of health problems. Students' lack of knowledge and habits in sorting and processing waste is one of the contributing factors to this problem. Therefore, early environmental education is needed to foster caring and responsible behavior in waste management. Improving students' knowledge and skills in sorting waste and processing organic waste into compost is an effort to create a clean and environmentally friendly school environment. The activity was carried out over one day through counseling, interactive discussions, demonstrations, and hands-on practice of waste sorting and making simple compost using presentation media and real-world examples. Students demonstrated active and enthusiastic participation throughout the activity. There was an increase in understanding of the types of waste, the importance of proper waste management, and the stages of composting. Students were able to practice sorting organic and inorganic waste and understand the basic process of composting. This activity was effective in increasing students' knowledge, awareness, and skills related to waste management and composting. The combination of interactive outreach methods and hands-on practice contributes to fostering environmentally conscious behavior and supporting the creation of a clean, healthy, and sustainable school environment.

This study analyzes the conditions of extreme overcapacity in an installed exhaust ventilation system (Qinstalled = 18.00 /minute) that serves four acid cabinet units, specifically for the storage of volatile Hazardous and Toxic Materials (B3) such as toluene and methanol in tightly sealed containers. Although high capacity ensures safety, this practice causes significant energy inefficiency and unnecessary negative pressure problems in the room. Based on engineering analysis using a conservative Air Change Rate (ACR) standard of   for liquid storage of 1.38 /minute. By applying the industry standard safety factor (FoS) of 1.5, the ideal flow rate (Qideal) that must be allocated is 2.07 . The optimization analysis concludes that the currently installed system is theoretically capable of safely and efficiently serving 8 units of volatile storage acid cabinets, with the addition of 4 new cabinets to maximize efficiency and reduce energy waste. This utilizes 92% of the total capacity while maintaining a safety factor above 1.5.

Waste management remains a significant challenge in Dusun Balinappang, Desa Bontoramba, Kecamatan Pallangga, Kabupaten Gowa, Makassar City. Low community awareness regarding waste sorting and proper management has led to a decline in environmental health quality. Improper waste management can result in various environmental problems, such as water, soil, and air pollution. To address this issue, a community service activity was conducted with the aim of improving public knowledge and awareness on proper waste management through the 3R approach (Reduce, Reuse, Recycle). The method used for this activity involved education through the use of posters. The posters were designed to be visually engaging and simple, making them easy for the community to understand. This visual medium effectively conveyed information about the importance of waste sorting and applying the 3R principles. Additionally, pre-tests and post-tests were used as evaluations to measure the change in participants’ knowledge before and after receiving the education. The pre-test was conducted to assess participants' initial understanding, while the post-test helped determine the extent of their knowledge improvement regarding 3R concepts and waste management practices. The results of the activity showed a significant increase in the community’s understanding of 3R principles and proper waste management techniques. The community began to demonstrate positive behavior changes, such as sorting household waste more carefully and reusing materials that could be recycled. This shift contributed positively to raising environmental awareness and improving the health of the local community. With this simple yet effective education, it is hoped that the program can continue and be expanded to other areas. This initiative will contribute to creating a cleaner, healthier, and more sustainable environment, which will have a long-term positive impact on the quality of life for the community.

The correctional facility SAE L’SIMA in Malang is confronted with two major challenges: the environmental impact of accumulated cow manure and the need to provide meaningful vocational training for inmates to support rehabilitation and reintegration. This community service program was designed to address both issues simultaneously through the introduction and application of biogas technology. The primary objective was to manage livestock waste as an alternative renewable energy source while equipping inmates with practical technical skills applicable beyond the correctional setting. The implementation method employed a participatory approach that involved several stages, including program socialization, site survey, biogas unit design, assembly of a small-scale digester, and subsequent monitoring and evaluation.The results demonstrated that the biogas unit was successfully constructed and operational; however, gas production levels remained below optimal standards. Key challenges identified included unstable temperature conditions, which negatively affected the fermentation process, and technical problems such as leakage in the piping system. These obstacles limited the overall effectiveness of gas generation. Despite these limitations, the project provided significant outcomes. First, it created a working model of sustainable energy generation within the correctional environment. Second, it delivered valuable vocational training for inmates, offering them both theoretical knowledge and hands-on experience in renewable energy technology. Furthermore, the program encouraged inmate participation, fostering teamwork, responsibility, and problem-solving skills that are essential for personal development.In conclusion, although technical barriers remain, this initiative succeeded in establishing the foundation for sustainable waste management and renewable energy application within a correctional facility. More importantly, it highlights the potential of biogas technology not only as an environmental solution but also as a rehabilitative vocational training tool. Continued monitoring, process optimization, and technical refinements are essential for achieving long-term success and scalability of this model in similar institutional contexts.

Household waste is one of the major contributors to environmental problems. Waste management based on the 3Rs is an important strategy in reducing negative impacts on health and ecosystems. This study aims to review the literature on the relationship between knowledge, attitudes, and practices of the community in managing household waste based on the 3R principles. The method used was a literature study by collecting literature from Google Scholar and Science Direct. The results showed that good knowledge encourages positive attitudes and more effective waste management practices. Education, especially to housewives, is proven to increase awareness and active participation in sorting and processing waste. Successful waste management requires active community involvement, infrastructure support, and ongoing mentoring. In conclusion, the strong relationship between knowledge, attitude and practice shows the importance of an integrated approach to household waste management based on the 3R principles to create a clean, healthy and sustainable environment. The contribution of this research to science is through the review of various field studies from a number of regions in Indonesia, and emphasizes the urgency of community-based education, especially for strategic groups such as housewives. Educational efforts to increase active participation and awareness of the 3R principles can be used as a reference in designing intervention programs by both the government and non-governmental organizations.  

The purpose of this community service is to educate the concept of Waste Bank, Green Economy, and Circulating Money to the community in Medan Belawan District. The specific target in this community service is that the Berkah Waste Bank workers in Medan Belawan Subdistrict know what Waste Bank, Green Economy, and Money Circulating to the Community in Medan Belawan Subdistrict, how to apply them to become household income opportunities, for example by becoming a new source of income from saving household waste that has been applied so that they can read the economic and environmental problems that occur. The materials presented in this community service are: what is a Waste Bank, Green Economy, and Circulating Money, how the impact of the Waste Bank on income from household waste. Which is related to improving household welfare through community knowledge / understanding related to Waste Bank, Green Economy, and Circulating Money. From this community service, the results show that with the existence of the Waste Bank, the application of the Green Economy concept can be seen from the collection of household waste easily collected at the Waste Bank, the community becomes a customer, has savings, withdraws money, then continues consumption shopping from the money, which means there is buying and selling activity in the market because there is money circulating in the community. This affects economic activity in the Medan Belawan sub-district.

Nutrition is very important in human development and growth. The 2021 edition of UNICEF-WHO-WORLD BANK states that 148.2 million children aged 0-5 years worldwide are stunted, 38.9 million are overweight, and 45.4 million are severely wasted. Nutritional problems often occur at the age of 6-24 months due to inadequate nutrition because of lack of mother's knowledge, therefore it is necessary to carry out interventions to increase mother's knowledge regarding balanced nutrition of children under two. The purpose of this study was to determine the effect of health promotion media on changes in the nutritional status of children under two years in Paloh Punti Village, Muara Satu District, Lhokseumawe. This research method used quasi-experimental quantitative research with a one group pretest-posttest design and involved 51 children under two years. The data collection technique used was purposive random sampling. The data collected is primary data in the form of body weight which is limited to nutritional status based on body weight/age. The results showed that the nutritional status of children under two years was 92.1% in the good nutritional status category after the intervention. The change in nutritional status from malnutrition to normal nutrition from the results of the prostest compared to the pretest was 27.4%. The use of health promotion media has an effect on malnutrition status based on the Wilcoxon test with a p-value of 0.029. The conclusion of this study is that there is an effect of health promotion media on the nutritional status of children under two years in Paloh Punti Village, Muara Satu District, Lhokseumawe.

The purpose of this activity is to encourage increased household management skills in household waste processing in Kaliprau Village, Ulujami District, Pemalang Regency. The objectives are: 1) Increasing community/household knowledge about management, especially household/home waste processing; 2) Developing home business skills in household waste processing so that it grows into one of the drivers (centers) of family economic movement. The results of this activity: 1) Increasing knowledge, understanding and skills for household industry groups, especially in the utilization of household waste and making compost with household waste as raw materials; 2) Identified problems and potentials that can be developed to support the development of home businesses through entrepreneurship groups; 3) Identified plans (strategies) for increasing the capacity of entrepreneurship groups that will help develop, plan and utilize local potential management.

Background:Wasteis a condition of acute malnutrition where the weight of a toddler is not in accordance with his height and the z-score value <-2. Toddlerhood is an important life and needs to be considered by parents. Toddlers need to get nutrients from daily food in the right amount and good quality. Education, maternal knowledge affects children's food choices, good maternal parenting patterns, children will grow and develop well by coming to the integrated health post, monitoring toddler weight is a positive attitude in solving problems. Purpose: This study was to determine the level of education, knowledge and maternal parenting patterns on the incidence of wasting in the work area of ​​the Nabarua Health Center UPTD, Nabire Regency. Method: The research design used was Cross Sectional. The sample used was 30 toddlers using total sampling. Data analysis used the Statistical Program for Social Science (SPSS) Version 16.0 computer release program and used the chi-square test. Results: test of the relationship between maternal education (p value = 0.23), maternal knowledge (p-value = 0.43), and Parenting (p-value = 0.82). Conclusion: There is no relationship between maternal education, maternal knowledge, and maternal parenting patterns with wasting incidents. Suggestion: It is expected that mothers of toddlers provide daily food in the right amount and good quality, good maternal parenting patterns so that children grow and develop well by coming to the integrated health post to monitor their child's weight.    

Environmental sanitation is an important factor in public health. Sanitation problems are one of the biggest challenges facing developing countries. According to the World Health Organization (WHO), one child dies from diarrhea every 15 seconds worldwide due to lack of access to sanitation. The purpose of this study was to determine the description of environmental sanitation in coastal communities in Tateli Village. The method used is quantitative research using descriptive methods. The population in this study were all houses in Tateli Village. The sample studied in this study used a total sampling technique where all populations were sampled, namely 48 houses as respondents. Data were collected using a questionnaire, then analyzed univariately. The results show that the description of environmental sanitation of coastal communities in Tateli village is, Healthy housing conditions that do not meet the requirements are more with a percentage of 77.1% compared to those that meet the requirements, Clean water supply conditions that meet the requirements are more with a percentage of 58.3% compared to those that do not meet the requirements, Family toilet conditions that do not meet the requirements are more with a percentage of 83.3% compared to those that meet the requirements, Wastewater drainage channels are more qualified with a percentage of 79.2% compared to those that do not meet the requirements, Waste bin facilities that do not meet the requirements are more with a percentage of 77.1% compared to those that meet the requirements.

Garbage will cause health problems if not managed properly. The increase in waste along with the rate of population growth and ignorance of sorting waste according to its type is a problem that must be resolved. As is the case with students at SDN Sendangrejo II Lamongan. This study aims to determine the effect of audio-visual education on knowledge of sorting waste at SDN Sendangrejo II Lamongan. The study used a pre-experimental one group post test design. The population of all students in grades 1-6 at SDN Sendangrejo II Lamongan was 44 respondents using SPSS 26.0 using a total sampling technique, the research instrument used a questionnaire, then the results were analyzed using the Wicoxon test with a significance level of p <0.05. The results of the study showed that before being given audio-visual education about sorting waste, it was found that almost all students (81.8%) had a low level of knowledge and after being given audio-visual education, it was found that most students (72.7%) had a good level of knowledge. Video is one of the educational media that can increase one's knowledge because the material presented can be received through the senses of sight and hearing. It is recommended that educators use this audio- visual technique in providing education or learning activities.

The study titled " Assessment of Hazard Problems in Workplace Related to Emergency Response Plan for employees in Primary Health Care centers at Babylon City." explores the significance of workplace safety through the implementation of occupational safety policies and regular inspections. The primary research question addresses whether the emergency response plan (ERP) in these healthcare centers is genuinely effective or merely a formality, highlighting that employees lack sufficient information about the ERP. The study aims to evaluate workplace risk problems, including fire alarm systems, emergency exits, regular employee check-ups, and medical waste disposal. Conducted between January 2 and March 30, 2018, in Babylon's primary healthcare centers, this descriptive quantitative study utilized a specially developed assessment tool and data collection through a quarterly supervisory form. Key findings indicate that 85% of the surrounding environment is suitable, 46% of sanitation systems are adequate, 96% of fire extinguishers are available, and 52% of emergency exits are accessible. Recommendations emphasize enhancing employee training on the ERP, conducting regular safety system inspections, and raising awareness of occupational safety's importance among staff.

Crude oil contamination is one of the major environmental problems, it generated processing water pollution by hydrocarbon. Microorganisms have been used to remove or reduce the effects of environmental pollutants as bioremediation agents and the fact it is environmentally friendly. This study isolated two Klebsiella strains, Klebsiella pneumonia and Klebsiella oxytoca from wastewater of the North refineries company in Baiji according to the morphological and biochemical characteristics.This work aimed to evaluated the capacity of two Klebsiella strains to degrade the petroleum hydrocarbons efficacy, which excreted from wastewater of the North refineries company. The results showed that the Klebsiella oxytoca exhibited a higher hydrocarbon degradation capacity of 67.75% compared to Klebsiella pneumonia, which recorded 45.81%. While mixed culture (Klebsiella oxytoca and Klebsiella pneumonia) was recorded a biodegradation rate of 63.35%. The results showed that efficacy of Klebsiella oxytoca as biodegradation for oil wastewater was 30% higher than other strain.

The problem of household waste/waste is no stranger to Indonesian society. This happens because of the lack of socialization in the community about how important it is to keep the environment clean. The Kogoro Settlement, Tanjungpinang City, is one of the areas experiencing household garbage/waste problems, which until now have not found a clear solution to this problem. Residential areas, which are almost entirely above sea level, exacerbate the situation in the area due to the large amount of garbage and waste carried by sea water. This problem must be resolved as soon as possible to maintain sustainability and the ecosystem runs smoothly. Therefore the government of Tanjungpinang City issued Regional Regulation No. 03 of 2015 concerning waste management, which aims to solve various problems and provide the concept of handling management as well as sanctions for those who violate these rules. In this study, we will examine the policies implemented by the Tanjungpinang City government in dealing with environmental problems. Using the Normative-Empirical method, this research will delve deeper into these environmental problems which include the existence of sanctions, ideas, rules in Tanjungpinang including the Kosgoro settlement. However, in implementing these rules, the Government of Kosgoro did not implement them as they should. This is supported by the people who are only given advice to throw garbage into trash cans which are quite far above the settlement due to the narrow access road in the Kosgoro area. Lack of government attention makes people less aware of managing household waste and waste.  

Background: Management of physical waste (solid and liquid) is an important aspect in maintaining environmental sustainability. In recent years, innovative technology has become a major focus in efforts to increase the effectiveness of physical waste management. The aim of this research is to examine the effectiveness of physical waste processing using innovative technology for each type of waste. Method: The research method that will be used in this research includes a literature review. The research method that will be used in this research is a key step to test and evaluate the effectiveness of innovative technology in physical waste processing. Results: Physical waste, such as plastic, electronics, and paper, has become an increasing global environmental problem. The impacts include soil, water and air pollution as well as human health risks. Effective physical waste management is important to reduce its negative impacts. Solutions include public education, government-industry collaboration on policy, and technological innovation. With good collaboration, it is hoped that effective solutions can be created to maintain environmental sustainability and human health. Innovative technologies in solid and liquid waste management provide advantages such as solutions to environmental problems, increased efficiency, and the creation of new, better products. However, challenges such as high investment costs, inadequate infrastructure and limited regulation need to be overcome. To overcome these challenges, cooperation between government, companies, academics and society is needed.

Bookkeeping administration is an important aspect in waste bank activities because it has the benefit of recording and carrying out complete and detailed reporting within a certain time period, so that there are no differences in calculations between customers and the Waste Bank management. The importance of bookkeeping administration in managing the Waste Bank (recording the entry and exit of each type of waste managed by the Waste Bank), can help optimize waste management and increase the effectiveness of waste management. Simple bookkeeping (in the form of Socialization) was introduced in the transaction cycle at the Bank Sampah "Sami Berkah", Kelurahan Meteseh, Kecamatan Tembalang, Semarang (making a Chart of Account, Journal from proof of transactions, posting to the ledger and subsidiary books, up to making Financial Reports). The administrative management of the Bank Sampah Sami Berkah has met the minimum requirements of the Dinas Lingkungan Hidup, starting from books, officers, waste reception schedules, until the waste deposited has been sorted by customers/members. Likewise, the duties and responsibilities of waste bank management officers are in accordance with the job and description of the organizational structure. The proposed use of the information system at the "Sami Berkah" Waste Bank is the use of an Android-based application or web system (mobile web access) in order to accommodate the need for faster and easier information access for customers/Members and Waste Bank managers, as well as being able to overcome the Bank's operational problems. Waste starts from customer registration, savings transaction processes to reporting, efficiently and with integrity. and easy to manage by admins and monitored by users directly.

Partners in this PPM activity are Village Apparatus and several community representatives of Sumur Gedang Village, Sungai Full City, Kerinci. Based on the analysis of the situation, the main problem faced by partners today lies in the phenomenon of waste which continues to increase in volume which causes environmental pollution, especially related to cleanliness and health. The increasing population and community activities greatly affect the increasing volume of waste in rural areas. Various kinds of pollution that occur due to piles of garbage so that the impacts caused include environmental damage, changes in health conditions. Support, participation and awareness from various parties, especially waste management drivers, is one of the keys to the success of good waste management. Based on these problems, through this activity, several solutions to solve problems will be provided. The method of implementing activities uses a participatory approach through training and mentoring activities, with measurable achievement targets. The results of PPM activities that have been carried out are obtained as a result of the PPM team has carried out all forms of training and simple practices to partners including in making natural compost by utilizing leftover vegetable pieces from households that can be used as natural fertilizer to fertilize the soil. In addition, the team practiced processing plastic waste to be used as handicrafts and other products which are expected to be attractive and can be resold in the future.

Findings in the Medan Denai and Medan Tembung traditional markets show that waste management is good, but waste management discipline has not been implemented, especially in the Sukaramai, Mandala, Pagi and Sore traditional markets, it appears that there are still people who do not implement it. don't care about cleanliness unless it's clean.Research in traditional markets shows that waste management is still not adhered to, such as a lack of waste sorting and processing processes, as well as market environments filled with large amounts of waste. One of the problems with waste in traditional markets is that there is a relatively large amount of it, which creates its own problems.This happens in traditional markets as an economic medium, where existing activities such as buying and selling from traders to consumers or from traders to traders indirectly create piles of rubbish.Studies at traditional markets in Medan City show that the behavior of traders in disposing of waste has a significant impact on increasing the volume of waste in traditional markets.In this case, handling waste problems in traditional markets actually requires the participation of traders.The waste problem at Sukaramai Market, Mandala Market, Morning Market and Afternoon Market is caused by an inefficient management system, accumulation of unsorted waste and the absence of a special group appointed by market managers to handle cleanliness and waste problems. Lots of rubbish scattered in the market.

One way to maintain environmental comfort is to prioritize and prioritize the cleanliness of the environment where you live through cleanliness, especially waste management (Khairunnisa et al., 2019; Wati et al., 2021). Waste management is an inseparable part of environmental cleanliness, because waste is basically thrown away or dumped into the environment by humans, so it can have a negative impact on the environment. (Gelbert, Prihanto, & Suprihatin, 2010). Through good waste management, we can improve environmental quality and public health and convert waste into resources (Khairunnisa et al., 2019; Suryani, 2014). Improper handling of waste problems can endanger public health aspects due to environmental pollution and aesthetic problems.